mikebar4
Expert Class
Posts: 178
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posted March 12, 2008 06:40 AM
anyone tried u4.2 fueli
am looking to get my 14 tuned and i was thinking of trying u4.2... the website says its equevelent to regular u4 and you can spray on it... anyone tried it?? how do ya like it??
  
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smokinzx14
Needs a life
Posts: 10197
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posted March 12, 2008 07:10 AM
I ran faster with 89 pump gas ........The old u4 was great but the new u4.2 is crap ...
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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k bryant
Needs a job
Sponsor
Posts: 2911
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posted March 12, 2008 07:55 AM
quote:
I ran faster with 89 pump gas ........The old u4 was great but the new u4.2 is crap ...
We found that as well. I don't know what happened with the blend. Though way more expensive, we're back to using MR9 as necessary. No doubts about how that works... 
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mikebar4
Expert Class
Posts: 178
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posted March 12, 2008 09:23 AM
yeah i want to run mr9 but thats shit is like 26 bucks a gallon... i will prob just get it tuned with 89... do they still have the regular u4?? what about high octane fuel like 110??
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mikebar4
Expert Class
Posts: 178
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posted March 12, 2008 09:23 AM
hey smokin-- what did you run your best time on fuel wise??
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ZXLNT
Needs a job
Kawpuke Extraordinare
Posts: 2853
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posted March 12, 2008 09:25 AM
Why high octane unless its oxygentated or your gonna spray nitrous. Most of the oxy'ed fuels aren't that high octane anyway.. If your not gonna spray then run MR9 if your gonna spray then C16 would be good..
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mikebar4
Expert Class
Posts: 178
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posted March 12, 2008 03:58 PM
i was going with mr9 but im not sponsored and the wife put me on a budget
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smokinzx14
Needs a life
Posts: 10197
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posted March 12, 2008 07:38 PM
quote:
hey smokin-- what did you run your best time on fuel wise??
Best numbers were on mr9 ... The old u4 came real close to the mr9 ..
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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Nelson Taylor
Zone Head
Posts: 927
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posted March 12, 2008 08:06 PM
I really wanted to get a custom map to U4.2 but its not looking good based on what I am reading. May have to go with MR9 but, I dont want the hassle of having to drain the tank after racing.
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Best #'s
1.54
4.03
6.02 @ 121mph
(Stock Wheelbase) 2006 ZX14
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mikebar4
Expert Class
Posts: 178
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posted March 13, 2008 06:18 AM
yeah me too,, plus paying 26 bucks a gallon would get old pretty quick.... i may just get mine tuned on 89 octane pump gas
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mikebar4
Expert Class
Posts: 178
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posted March 13, 2008 07:15 AM
http://psychobike.com/cgi-bin/ikonboard.cgi?s=284e128d921c67e8b2fa4ce0c2354f2d;act=ST;f=43;t=49339
seems like it does work, especially if tuned on it....
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mikebar4
Expert Class
Posts: 178
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posted March 13, 2008 03:12 PM
the guys who posted on that link talked good about it.,.,.,.,., said its equevelent to reg u4
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